rename obsolete values from 'student' to 'potential' for clarity. no functionality change.
change PIP class to 800 when at full price
enable front-end for picking classes; fix bugs in having to double click kpi boxes to get details window up; add sorting of all columns by clicking on header; remove search (it was silly)
finally enable backend for filtering KPIs by course
refactor month selection list to fix but that could skip months
remove erroneous logging
update to latest submodules to handle Course from zoho